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Square D QOB120DF - Molded Case 20A 1-Pole (120/240VAC)

Square D
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Square D QOB120DF is a 1-pole molded case circuit breaker from the QOB Series, designed for thermal-magnetic protection against overloads and short circuits. It is rated for 20A at 120/240VAC with a 10kA interrupting capacity at 120V, and features a bolt-on connection with pressure plate terminals accepting AWG 14 to AWG 8 copper/aluminum or AWG 14 to AWG 10 copper wire. The breaker measures 4.8 in (121 mm) x 0.7 in (19 mm) x 2.9 in (74 mm) (H x W x D), weighs 0.25 lb, and operates within a temperature range of -13°F to 158°F (-25°C to 70°C). It is UL Listed and CSA certified, providing long time and instantaneous trip functions for single-phase industrial applications.

Key Features & Specifications
  • Type: QOB Molded Case Circuit Breaker
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Dimensions: 4.8 in x 0.7 in x 2.9 in (121 mm x 19 mm x 74 mm)
  • Standards: CSA, UL Listed
  • Applications: Single-phase industrial protection
  • Switch Type: Thermal-Magnetic
  • Configuration: 1-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240VAC
  • Amperage: 20A
  • AIC rating: 10kA@120V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: QOB
  • Trip Type: Thermal-Magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 60 Hz (assumed from AC rating)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 20A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 20A
  • Full Load Amp Minimum: 20A
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 14 to AWG 8 Cu/Al, AWG 14 to AWG 10 Cu
  • Amperage Maximum: 20A
  • Amperage Minimum: 20A
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: AWG 14 to AWG 8 Cu/Al, AWG 14 to AWG 10 Cu
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Pressure Plate
  • Frequency Rating: 60 Hz (assumed)
  • Phase Connection: Single-phase
  • Standards: CSA, UL Listed
  • Compatible Frames: QOB
  • Installation Type: Bolt-On
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOB
  • Current Rating: 20A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 785901051251
  • GTIN: 00785901051251